Product Description
Roots Vacuum Pump VP electric value water 2 stage water rotary ac liquid heavy duty mini CHINAMFG high pressure vacuum pump transmission
VP roots vacuum pump is in the 50 Torr-micron high vacuum range has a large pumping speed and low cost of equipment, it can be combined with various vacuum pump consists of a vacuum unit. KMBD roots vacuum pump with 5 point bearing design unique, sealing the five bit machine, sealing double sealing structure + mechanical seal for Teflon maze, can realize non leakage, reduce maintenance and repair of the link, ensure the roots pump and durable. Synchronous helical gear and mounted on the driving end, both to ensure quiet and reliable operation, and can reduce the load of the rotor torque. Impeller and shaft integrally cast, can provide large size shaft, impeller and reduce the risk of damage. All contact with the sealing surface of the shaft end faces are polished to reduce wear and reduce the risk of leakage, high temperature high pressure casing, and double tank design, a variety of material selection, further to ensure that the use of the user in various working conditions. Typical application: chemical, petrochemical, plastics, semiconductors, wood mixture, food processing, vacuum furnace, vacuum booster system, vacuum drying, vacuum dewatering, vacuum packaging
Typical Applications
Special structures working principles,suitable for operation in chemical industry,oil industry,food industry,electrical utility industry,pharmacy industry,textile industry and paper making industry,etc. The other industries that need vacuum drying,concentration,distilling,dehydration and filtering also need the water-ring vacuum pump. It can be use as a backing pump of Roots Pump.
Specifications
| Model | Capacity | Ultimate Pressure | Power | speed |
| L/S | Pa | KW | RPM | |
| VP200 | 200 | 0.05 | 4 | 2900 |
| VP600 | 600 | 0.05 | 7.5 | 2900 |
Characteristic Curves
Overall Dimensions
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Structure: | Piston Pump, Roots Vacuum Pump |
|---|---|
| Inlet Diam. (mm): | 100/200mm |
| Motor Power (Kw): | 4/7.5 Kw |
| Model Number: | Vp |
| Application: | Automotive Industry |
| Power Source: | Hydrauli |
| Samples: |
US$ 9999/Piece
1 Piece(Min.Order) | |
|---|
How Do You Select the Right Size Roots Vacuum Pump for a Specific Application?
Selecting the right size Roots vacuum pump for a specific application requires careful consideration of various factors. Here’s a detailed explanation:
1. Determine the Required Pumping Speed: The pumping speed is a crucial parameter that indicates the volume flow rate of gas that the Roots vacuum pump can handle. To select the right size pump, you need to determine the required pumping speed for your application. Consider factors such as the volume of the system being evacuated, the gas load, and the desired evacuation time. The required pumping speed will help narrow down the options and identify pumps that can meet your application’s demands.
2. Consider the Ultimate Vacuum Level: The ultimate vacuum level is the lowest pressure that the Roots vacuum pump can achieve under ideal conditions. Different applications have varying vacuum level requirements. Determine the desired ultimate vacuum level for your application, keeping in mind factors such as the sensitivity of the process, the presence of moisture or contaminants, and the specific requirements of the downstream equipment or processes. Ensure that the selected pump can reach the required vacuum level.
3. Evaluate Gas Composition and Characteristics: The composition and characteristics of the gas being pumped are essential considerations. Some gases, such as condensable vapors or corrosive gases, may require special pump features or materials to ensure efficient and safe operation. Consider the gas composition, including its chemical properties, temperature, and any potential challenges it may pose to the pump’s performance or longevity. Consult the pump manufacturer or specialist for guidance on selecting a pump suitable for handling the specific gas or gas mixture in your application.
4. Account for System Constraints and Operating Conditions: Assess the system constraints and operating conditions that may impact the pump’s performance. Factors such as the available space for the pump, power supply requirements, cooling options, and noise limitations should be taken into consideration. Additionally, consider any specific operating conditions such as temperature extremes, high-altitude operation, or continuous-duty requirements. Ensure that the selected pump is compatible with the system constraints and can operate reliably under the anticipated operating conditions.
5. Consult Manufacturer Specifications and Performance Curves: Review the manufacturer’s specifications and performance curves for the Roots vacuum pumps under consideration. These documents provide detailed information about the pump’s capabilities, operating ranges, and performance characteristics. Pay attention to parameters such as pumping speed, ultimate vacuum level, power requirements, and any specific features or limitations. Compare the specifications with your application requirements to identify pumps that align with your needs.
6. Seek Expert Advice: If you are unsure about the pump selection process or have complex application requirements, it is recommended to seek advice from pump manufacturers or specialists. They can provide valuable insights, recommend suitable pump models, and assist in evaluating your specific application needs.
7. Consider Future Expansion and Flexibility: When selecting a Roots vacuum pump, consider the potential for future expansion or changes in your application. If there is a possibility of increased gas load or system requirements in the future, it may be advantageous to select a slightly larger pump to accommodate potential growth and ensure long-term suitability.
In summary, selecting the right size Roots vacuum pump involves determining the required pumping speed, considering the ultimate vacuum level, evaluating gas composition and characteristics, accounting for system constraints and operating conditions, consulting manufacturer specifications, and seeking expert advice when needed. By carefully considering these factors, you can choose a Roots vacuum pump that meets the specific requirements of your application, ensuring efficient and reliable operation.
How Do Roots Vacuum Pumps Differ from Other Types of Vacuum Pumps?
Roots vacuum pumps, also known as Roots blowers or rotary lobe pumps, have distinct characteristics that set them apart from other types of vacuum pumps. Here’s a detailed explanation of the differences between Roots vacuum pumps and other common types of vacuum pumps:
1. Operating Principle: Roots vacuum pumps operate based on the principle of positive displacement. They use synchronized rotating lobes to trap and compress gas, resulting in the creation of a pressure differential that generates vacuum. Other types of vacuum pumps, such as rotary vane pumps, liquid ring pumps, and diffusion pumps, operate on different principles, such as rotor rotation, liquid sealing, or molecular diffusion.
2. Pumping Mechanism: Roots vacuum pumps are non-contacting pumps, meaning there is no physical contact between the lobes or between the lobes and the housing. This eliminates the need for lubrication within the pump and reduces the risk of contamination or oil vapor backstreaming into the vacuum system. In contrast, many other types of vacuum pumps rely on a sealing mechanism that involves physical contact between moving parts, requiring lubrication to maintain proper operation.
3. Pumping Speed: Roots vacuum pumps are known for their high pumping speed, which refers to the rate at which they can remove gas from a vacuum system. They excel at handling large volumes of gas efficiently. This makes Roots vacuum pumps suitable for applications that require rapid evacuation or continuous extraction of gases. Other types of vacuum pumps may have different pumping speeds depending on their design and intended applications.
4. Vacuum Level: While Roots vacuum pumps are efficient at generating rough vacuum levels, typically in the range of 10 to 1,000 mbar, they are not capable of achieving high vacuum levels on their own. They are often used in conjunction with other vacuum pumps, such as rotary vane pumps or diffusion pumps, in hybrid or combination pumping systems to achieve higher vacuum levels. In contrast, other types of vacuum pumps, such as turbomolecular pumps or cryogenic pumps, are designed specifically for achieving and maintaining high vacuum levels.
5. Gas Handling: Roots vacuum pumps have a large gas handling capacity and can handle a wide range of gases, including clean air, corrosive gases, and vapors. Their robust construction and ability to handle gas with particulates or liquids make them suitable for applications in various industries. Other types of vacuum pumps may have limitations in terms of the types of gases they can handle or may require additional equipment or treatments to handle specific gases.
6. Applications: Roots vacuum pumps find applications in a wide range of industrial processes, including chemical processing, pharmaceuticals, food processing, environmental technology, semiconductor manufacturing, packaging, and research laboratories. Other types of vacuum pumps, such as turbomolecular pumps, cryogenic pumps, or scroll pumps, may be more commonly used in specific industries or applications where their unique operating principles or capabilities are advantageous.
It’s important to note that the selection of a vacuum pump depends on various factors, including the desired vacuum level, gas composition, pumping speed requirements, application-specific considerations, and budget constraints. Different types of vacuum pumps offer distinct advantages and are chosen based on the specific requirements of the application.
In summary, Roots vacuum pumps differ from other types of vacuum pumps in terms of their operating principle, pumping mechanism, pumping speed, vacuum level capabilities, gas handling capacity, and applications. Understanding these differences helps in selecting the most suitable vacuum pump for a particular industrial process or application.
editor by Dream 2024-04-25
China Standard Roots Vacuum Pump Rotary AC Liquid Mini CHINAMFG Vp Electric Value Water 2 Stage Water High Pressure Heavy Duty Vacuum Pump Transmission vacuum pump adapter
Product Description
Liquid Ring Environmental Vacuum Pump Mini Vacuum Air Compressor Pump for Air Conditioning China Manufacturer
Application of Vacuum Pump
Vacuum pumps are used in a wide variety of applications, including:
- Scientific research: Vacuum pumps are used in scientific research to create a vacuum environment, which is necessary for experiments that require a controlled environment. For example, vacuum pumps are used in the study of the behavior of gases and liquids, as well as in the study of the effects of radiation on matter.
- Manufacturing: Vacuum pumps are used in manufacturing to remove air from a variety of products, including food, electronics, and pharmaceuticals. This is done to improve the quality of the product and to extend its shelf life. For example, vacuum pumps are used to remove air from food packaging, which helps to prevent the growth of bacteria.
- Medical: Vacuum pumps are used in medicine to remove fluids from the body, such as blood, pus, and cerebrospinal fluid. This is done to treat a variety of medical conditions, including infections, injuries, and tumors. For example, vacuum pumps are used to remove blood from a wound during surgery.
- Industrial: Vacuum pumps are used in industry to remove dust, fumes, and other pollutants from the air. This is done to improve air quality and to protect workers from exposure to harmful substances. For example, vacuum pumps are used to remove dust from the air in a factory.
- Space exploration: Vacuum pumps are used in space exploration to create a vacuum environment in spacecraft and satellites. This is necessary to prevent the buildup of pressure, which could damage the spacecraft. For example, vacuum pumps are used to create a vacuum environment in the International Space Station.
Vacuum pumps are a versatile tool that is used in a wide variety of applications. They are essential for a variety of industries and scientific research.
Here are some of the most common types of vacuum pumps:
- Rotary vane pumps: Rotary vane pumps are the most common type of vacuum pump. They are simple to operate and maintain, and they are relatively inexpensive. Rotary vane pumps are typically used for low- to medium-vacuum applications.
- Scroll pumps: Scroll pumps are another common type of vacuum pump. They are more efficient than rotary vane pumps, and they can be used for a wider range of vacuum applications. Scroll pumps are typically used for medium- to high-vacuum applications.
- Turbomolecular pumps: Turbomolecular pumps are the most efficient type of vacuum pump. They can be used for very high-vacuum applications, such as those used in space exploration and scientific research. Turbomolecular pumps are typically used for ultra-high-vacuum applications.
The type of vacuum pump that is best for a particular application will depend on the specific requirements of the application. For example, a rotary vane pump may be sufficient for a low-vacuum application, such as removing air from a food packaging machine. However, a turbomolecular pump may be required for a high-vacuum application, such as removing air from a spacecraft.
Vacuum pumps are a critical tool for a variety of industries and scientific research. They are essential for creating a vacuum environment, which is necessary for a variety of processes and applications.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| After-sales Service: | Installation Guide 1-Year Warranty |
|---|---|
| Warranty: | Installation Guide 1-Year Warranty |
| Oil or Not: | Oil Free |
| Structure: | Rotary Vacuum Pump |
| Exhauster Method: | Entrapment Vacuum Pump |
| Vacuum Degree: | Vacuum |
| Samples: |
US$ 9999/Piece
1 Piece(Min.Order) | |
|---|
What Is the Significance of Roots Vacuum Pumps in the Aerospace Sector?
Roots vacuum pumps play a significant role in various applications within the aerospace sector. Here’s a detailed explanation:
1. Space Simulation Chambers:
– Vacuum Simulation: Roots vacuum pumps are utilized in space simulation chambers to create and maintain vacuum conditions similar to the space environment. These chambers are used to test and simulate the performance of aerospace components and systems under low-pressure conditions, including the effects of vacuum on materials, electronics, and mechanical systems.
– Thermal Vacuum Testing: Roots pumps are crucial in thermal vacuum testing, where aerospace components and systems are subjected to extreme temperature and vacuum conditions. The pumps help evacuate the test chamber and maintain the required vacuum level, enabling accurate thermal testing and evaluation of aerospace equipment’s performance and functionality in space-like conditions.
2. Propellant Handling and Storage:
– Rocket Engine Testing: Roots vacuum pumps are employed in rocket engine testing facilities for propellant handling and storage. They assist in creating a vacuum environment during the propellant loading and purging processes, ensuring the removal of air or contaminants from the propellant tanks and lines. This helps maintain the propellant’s quality and prevents potential issues, such as cavitation or gas bubble formation, that could affect engine performance.
– Fuel Systems: Roots pumps are used in aerospace fuel systems to evacuate and degas the fuel tanks, ensuring the removal of air or gas bubbles that may compromise fuel delivery and engine operation. These pumps contribute to the overall efficiency, reliability, and safety of fuel systems in aerospace vehicles.
3. Environmental Control Systems (ECS):
– Cabin Pressure Control: Roots vacuum pumps are utilized in the environmental control systems of aircraft and spacecraft to help control cabin pressure. By creating a vacuum or adjusting the air circulation, these pumps assist in maintaining the desired cabin pressure levels, ensuring passenger comfort, and providing a safe and controlled environment during flight.
4. Avionics and Electronics:
– Electronic Component Testing: Roots vacuum pumps are employed in the testing and validation of avionics and electronic components used in aerospace applications. These pumps assist in creating a controlled vacuum environment during testing, allowing engineers to evaluate the performance, reliability, and durability of electronic systems under low-pressure conditions.
– Vacuum Encapsulation: In certain aerospace applications, electronic components or circuits may require vacuum encapsulation for protection against harsh environmental conditions, including high altitude, temperature variations, or moisture. Roots vacuum pumps are utilized to create the necessary vacuum environment for the encapsulation process, ensuring the integrity and longevity of sensitive electronics.
5. Space Propulsion Systems:
– Ion Thrusters and Electric Propulsion: Roots vacuum pumps are integral components of ion thrusters and electric propulsion systems used in spacecraft. These pumps aid in the creation and maintenance of the high vacuum conditions required for the operation of these advanced propulsion technologies. They contribute to the efficient exhaust gas removal, ensuring optimal thrust generation and fuel efficiency.
6. Satellite Manufacturing and Testing:
– Satellite Chamber Evacuation: Roots vacuum pumps are utilized in satellite manufacturing and testing facilities for the evacuation of satellite chambers. These pumps help create the required vacuum conditions during satellite assembly, testing, and payload integration, ensuring the cleanliness, functionality, and performance of satellite systems and instruments.
In summary, Roots vacuum pumps have significant significance in the aerospace sector. They are utilized in space simulation chambers, propellant handling and storage, environmental control systems, avionics and electronics testing, space propulsion systems, and satellite manufacturing and testing. By creating and maintaining vacuum conditions, Roots pumps contribute to the performance, reliability, and safety of aerospace components, systems, and vehicles. They play a vital role in supporting space exploration, satellite communication, and the advancement of aerospace technologies.
What Is a Roots Vacuum Pump, and How Does It Work?
A Roots vacuum pump, also known as a Roots blower or a rotary lobe pump, is a type of positive displacement vacuum pump that is widely used for various industrial applications. Here’s a detailed explanation of what a Roots vacuum pump is and how it works:
A Roots vacuum pump consists of two synchronized rotors, known as lobes or impellers, that rotate in opposite directions within a housing. The lobes have a unique helical shape with multiple lobes, which allows them to trap and move gas efficiently. The rotors are synchronized with the help of timing gears to maintain precise clearances between the lobes and the housing.
The operation of a Roots vacuum pump can be described in the following steps:
1. Inlet Stage: The process begins with the lobes rotating in opposite directions. As the lobes rotate, the volume between them and the housing gradually increases, creating a larger space at the inlet side of the pump. This expansion of the volume causes the gas to enter the pump through the inlet port. The gas is drawn in due to the pressure difference between the inlet and the pump’s internal chamber.
2. Compression Stage: As the gas enters the pump, it gets trapped in the spaces between the lobes and the housing. As the lobes continue to rotate, the trapped gas gets carried along the rotating lobes. The gas is essentially trapped in the pockets formed by the lobes and the housing. The rotating lobes then compress the gas as they move towards the outlet side of the pump.
3. Outlet Stage: As the lobes approach the outlet side of the pump, the volume between them and the housing decreases, resulting in the compression of the trapped gas. This compression raises the pressure of the gas, causing it to be expelled through the outlet port of the pump. The expelled gas is then discharged into the atmosphere or directed to a downstream process or another vacuum pump, depending on the application.
It’s important to note that a Roots vacuum pump operates as a non-contacting pump, meaning that there is no physical contact between the lobes or between the lobes and the housing. This characteristic eliminates the need for lubrication within the pump and reduces the risk of contamination or oil vapor backstreaming into the vacuum system.
Roots vacuum pumps are known for their high pumping speed and ability to handle large volumes of gas. However, they are not capable of achieving high vacuum levels on their own. To achieve higher vacuum levels, a Roots pump is often used in conjunction with other vacuum pumps, such as rotary vane pumps or diffusion pumps, in a hybrid or combination pumping system.
In summary, a Roots vacuum pump operates based on the principle of positive displacement. It utilizes synchronized rotating lobes to trap and compress gas, allowing it to be discharged at a higher pressure. The non-contacting design of the pump eliminates the need for lubrication and reduces the risk of contamination. Roots vacuum pumps are commonly employed in various industrial applications, especially when high pumping speed and large gas handling capacity are required.
editor by CX 2024-04-13
China Best Sales High Quality Acid Chemical Pump Mud Pump Industrial Heavy Duty Slurry Pump Screw Vacuum Pump vacuum pump adapter
Product Description
Company Profile
SHEN LAN is a foreign trade enterprise in the field of professional and industrial pumps. Established in 2008, our factory has become a famous enterprise in the Chinese market, and our products are exported to Europe, America, Asia and Africa. The high quality of our products has won us high reputation both at home and abroad. The company has core patents, research and development of all kinds of different functions of slurry pump, desulfurization pump, clean water pump, vacuum pump and other products, Our products are applicable in various fields such as labs, chemical, petroleum, papermaking, pharmacy and food industries, and water and electricity factories. According to customers′ different use scenarios to develop technical solutions. Meet any customer needs. The company focuses on product quality, in accordance with the highest standards in the industry to produce, so that customers on quality rest assured, satisfied with the service. As a trustworthy China Supplier, we sincerely hope to cooperate with more friends worldwide.
Product Description
Material: high chromium alloy
Application: suitable for conveying high concentration slurry with strong abrasion or slurry with low concentration and high lift
Layout: Horizontal
Transmission type: DC Direct drive, Cr parallel belt drive, zvz upper and lower belt drive, CV vertical belt drive, etc.
A-H (R), HH and M (R) series slurry pumps are cantilever and horizontal centrifugal slurry pumps. It is suitable for conveying CHINAMFG or corrosive slurry in metallurgical, mining, coal, electric power, building materials and other industrial departments.
A-H (R) and HH have also become heavy-duty slurry pumps, which are suitable for conveying strong abrasion high concentration slurry or low concentration high lift slurry. Within the allowable range of pressure, this type of pump can also be used in multi-stage series. HH pump is suitable for conveying low concentration high head slurry or high concentration low abrasion high head slurry.
Best Selling Models
Model: 2-1.5B-A-H
Flow: 12-29 m3/h
Head: 6-68 m
Power: 55 kw
Speed: 1200-3800 r/min
Material: High Chrome Alloy
Layout: Horizontal
Useage: it is suitable for conveying high concentration slurry with strong abrasion or slurry with low concentration and high head.
Transfer Method: DC Direct drive, Cr parallel belt drive, zvz upper and lower belt drive, CV vertical belt drive, etc.
Model: 6-4D-A-H
Flow: 162-360 m3/h
Head: 12-56 m
Power: 30 kw
Speed: 800-1550 r/min
Material: High Chrome Alloy
Layout: Horizontal
Useage: it is suitable for conveying high concentration slurry with strong abrasion or slurry with low concentration and high head.
Transfer Method: DC Direct drive, Cr parallel belt drive, zvz upper and lower belt drive, CV vertical belt drive, etc.
Model: 10-8E-A-H
Flow: 540-1440 m3/h
Head: 14-60 m
Power: 15 kw
Speed: 600-1000 r/min
Material: High Chrome Alloy
Layout: Horizontal
Useage: it is suitable for conveying high concentration slurry with strong abrasion or slurry with low concentration and high head.
Transfer Method: DC Direct drive, Cr parallel belt drive, zvz upper and lower belt drive, CV vertical belt drive, etc.
AH Series Type Info (for initial selection only)
| TYPE | Allowable Mating Max. Power(KW) | Material | Clear Water Performance | Impeller | |||||||
| Liner | Impel | Capacity Q | Head H (m) |
Speed N (r/min) |
Max. Eff(%) | NPSH (m) |
No. of Vanes S | Dia.(mm) | |||
| M³/h | l/s | ||||||||||
| 1.5/1B-AH | 15 | M | M | 12.6-28.8 | 3.5-8 | 6-68 | 1200-3800 | 40 | 2-4 | 5 | 152 |
| 2/1.5B-AH | 15 | M | M | 32.4-72 | 9-20 | 6-58 | 1200-3200 | 45 | 3.5-8 | 5 | 184 |
| 3/2C-AH | 30 | M | M | 39.6-86.4 | 11-24 | 12-64 | 1300-2700 | 55 | 4-6 | 5 | 214 |
| 4/3C-AH | 30 | M | M | 86.4-198 | 24-55 | 9-52 | 1000-2200 | 71 | 4-6 | 5 | 245 |
| 6/4D-AH | 60 | M | M | 162-360 | 45-100 | 12-56 | 800-1550 | 65 | 5-8 | 5 | 365 |
| 8/6R-AH | 300 | M | M | 360-828 | 100-230 | 10-61 | 500-1140 | 72 | 2-9 | 5 | 510 |
| 10/8E-M | 120 | M | M | 666-1440 | 185-400 | 14-60 | 600-1100 | 73 | 4-10 | 5 | 549 |
| 10/8ST-AH | 560 | M | M | 612-1368 | 170-380 | 11-61 | 400-850 | 71 | 4-10 | 5 | 686 |
| 12/10ST-AH | 560 | M | M | 936-1980 | 260-550 | 7-68 | 300-800 | 82 | 6 | 5 | 762 |
| 14/12ST-AH | 560 | M | M | 1260-2772 | 350-770 | 13-63 | 300-600 | 77 | 3-10 | 5 | 965 |
| 16/14TU-AH | 1200 | M | M | 1368-3060 | 380-850 | 11-63 | 250-550 | 79 | 4-10 | 5 | 1067 |
| 20/18TU-AH | 1200 | M | M | 2520-5400 | 700-1500 | 13-57 | 200-400 | 85 | 5-10 | 5 | 1370 |
| Note: 1.”M”Stands for Alloy wear-resistant material; “R” stands for rubber 2.Capacity range recommend 50%Q’≤Q≤110%Q’ (Q’≈Appropriate capacity at highest efficiency point) 3.NPSH is the value at the Q point with highest speed . |
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FAQ
Q1. Are you a manufacturer?
Yes, we have been in centrifugal pumps manufacturing and marketing industry over 20 years.
Q2. What markets do your pumps export to?
Europe, North & South America, South-East Asia, Africa, Oceanica, Middle East countries. Our overseas agent in Italy, Russia, America and Africa are gradually improving.
Q3. What information should I let you know if I want to get a quotation?
Please let us know the pump capacity, head, medium, operation situation, quantity, etc. As much as your provide, the precision and accurate model selection.
Q4. Is it available to print our own brand on the pump?
Totally acceptable as international rules.
Q5. How can I get the price of your pump?
You can connect with us through any of the following contact information. Our personalized service person will respond you within 24 hours.
contact-info.html
| After-sales Service: | Anytime |
|---|---|
| Warranty: | One Year |
| Influent Type of Impeller: | Single Suction Pump |
| Position of Pump Shaft: | Horizontal Pump |
| Pump Casing Combined: | Horizontal Split Pumps |
| Mounting Height: | Suction Centrifugal |
| Samples: |
US$ 5000/Set
1 Set(Min.Order) | |
|---|
| Customization: |
Available
|
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|---|
What Is the Vacuum Level and How Is It Measured in Vacuum Pumps?
The vacuum level refers to the degree of pressure below atmospheric pressure in a vacuum system. It indicates the level of “emptiness” or the absence of gas molecules in the system. Here’s a detailed explanation of vacuum level measurement in vacuum pumps:
Vacuum level is typically measured using pressure units that represent the difference between the pressure in the vacuum system and atmospheric pressure. The most common unit of measurement for vacuum level is the Pascal (Pa), which is the SI unit. Other commonly used units include Torr, millibar (mbar), and inches of mercury (inHg).
Vacuum pumps are equipped with pressure sensors or gauges that measure the pressure within the vacuum system. These gauges are specifically designed to measure the low pressures encountered in vacuum applications. There are several types of pressure gauges used for measuring vacuum levels:
1. Pirani Gauge: Pirani gauges operate based on the thermal conductivity of gases. They consist of a heated element exposed to the vacuum environment. As gas molecules collide with the heated element, they transfer heat away, causing a change in temperature. By measuring the change in temperature, the pressure can be inferred, allowing the determination of the vacuum level.
2. Thermocouple Gauge: Thermocouple gauges utilize the thermal conductivity of gases similar to Pirani gauges. They consist of two dissimilar metal wires joined together, forming a thermocouple. As gas molecules collide with the thermocouple, they cause a temperature difference between the wires, generating a voltage. The voltage is proportional to the pressure and can be calibrated to provide a reading of the vacuum level.
3. Capacitance Manometer: Capacitance manometers measure pressure by detecting the change in capacitance between two electrodes caused by the deflection of a flexible diaphragm. As the pressure in the vacuum system changes, the diaphragm moves, altering the capacitance and providing a measurement of the vacuum level.
4. Ionization Gauge: Ionization gauges operate by ionizing gas molecules in the vacuum system and measuring the resulting electrical current. The ion current is proportional to the pressure, allowing the determination of the vacuum level. There are different types of ionization gauges, such as hot cathode, cold cathode, and Bayard-Alpert gauges.
5. Baratron Gauge: Baratron gauges utilize the principle of capacitance manometry but with a different design. They consist of a pressure-sensing diaphragm separated by a small gap from a reference electrode. The pressure difference between the vacuum system and the reference electrode causes the diaphragm to deflect, changing the capacitance and providing a measurement of the vacuum level.
It’s important to note that different types of vacuum pumps may have different pressure ranges and may require specific pressure gauges suitable for their operating conditions. Additionally, vacuum pumps are often equipped with multiple gauges to provide information about the pressure at different stages of the pumping process or in different parts of the system.
In summary, vacuum level refers to the pressure below atmospheric pressure in a vacuum system. It is measured using pressure gauges specifically designed for low-pressure environments. Common types of pressure gauges used in vacuum pumps include Pirani gauges, thermocouple gauges, capacitance manometers, ionization gauges, and Baratron gauges.
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Can Vacuum Pumps Be Used for Leak Detection?
Yes, vacuum pumps can be used for leak detection purposes. Here’s a detailed explanation:
Leak detection is a critical task in various industries, including manufacturing, automotive, aerospace, and HVAC. It involves identifying and locating leaks in a system or component that may result in the loss of fluids, gases, or pressure. Vacuum pumps can play a significant role in leak detection processes by creating a low-pressure environment and facilitating the detection of leaks through various methods.
Here are some ways in which vacuum pumps can be used for leak detection:
1. Vacuum Decay Method: The vacuum decay method is a common technique used for leak detection. It involves creating a vacuum in a sealed system or component using a vacuum pump and monitoring the pressure change over time. If there is a leak present, the pressure will gradually increase due to the ingress of air or gas. By measuring the rate of pressure rise, the location and size of the leak can be estimated. Vacuum pumps are used to evacuate the system and establish the initial vacuum required for the test.
2. Bubble Testing: Bubble testing is a simple and visual method for detecting leaks. In this method, the component or system being tested is pressurized with a gas, and then immersed in a liquid, typically soapy water. If there is a leak, the gas escaping from the component will form bubbles in the liquid, indicating the presence and location of the leak. Vacuum pumps can be used to create a pressure differential that forces gas out of the leak, making it easier to detect the bubbles.
3. Helium Leak Detection: Helium leak detection is a highly sensitive method used to locate extremely small leaks. Helium, being a small atom, can easily penetrate small openings and leaks. In this method, the system or component is pressurized with helium gas, and a vacuum pump is used to evacuate the surrounding area. A helium leak detector is then used to sniff or scan the area for the presence of helium, indicating the location of the leak. Vacuum pumps are essential for creating the low-pressure environment required for this method and ensuring accurate detection.
4. Pressure Change Testing: Vacuum pumps can also be used in pressure change testing for leak detection. This method involves pressurizing a system or component and then isolating it from the pressure source. The pressure is monitored over time, and any significant pressure drop indicates the presence of a leak. Vacuum pumps can be used to evacuate the system after pressurization, returning it to atmospheric pressure for comparison or retesting.
5. Mass Spectrometer Leak Detection: Mass spectrometer leak detection is a highly sensitive and precise method used to identify and quantify leaks. It involves introducing a tracer gas, usually helium, into the system or component being tested. A vacuum pump is used to evacuate the surrounding area, and a mass spectrometer is employed to analyze the gas samples for the presence of the tracer gas. This method allows for accurate detection and quantification of leaks down to very low levels. Vacuum pumps are crucial for creating the necessary vacuum conditions and ensuring reliable results.
In summary, vacuum pumps can be effectively used for leak detection purposes. They facilitate various leak detection methods such as vacuum decay, bubble testing, helium leak detection, pressure change testing, and mass spectrometer leak detection. Vacuum pumps create the required low-pressure environment, assist in evacuating the system or component being tested, and enable accurate and reliable leak detection. The choice of vacuum pump depends on the specific requirements of the leak detection method and the sensitivity needed for the application.
How Are Vacuum Pumps Different from Air Compressors?
Vacuum pumps and air compressors are both mechanical devices used to manipulate air and gas, but they serve opposite purposes. Here’s a detailed explanation of their differences:
1. Function:
– Vacuum Pumps: Vacuum pumps are designed to remove or reduce the pressure within a closed system, creating a vacuum or low-pressure environment. They extract air or gas from a chamber, creating suction or negative pressure.
– Air Compressors: Air compressors, on the other hand, are used to increase the pressure of air or gas. They take in ambient air or gas and compress it, resulting in higher pressure and a compacted volume of air or gas.
2. Pressure Range:
– Vacuum Pumps: Vacuum pumps are capable of generating pressures below atmospheric pressure or absolute zero pressure. The pressure range typically extends into the negative range, expressed in units such as torr or pascal.
– Air Compressors: Air compressors, on the contrary, operate in the positive pressure range. They increase the pressure above atmospheric pressure, typically measured in units like pounds per square inch (psi) or bar.
3. Applications:
– Vacuum Pumps: Vacuum pumps have various applications where the creation of a vacuum or low-pressure environment is required. They are used in processes such as vacuum distillation, vacuum drying, vacuum packaging, and vacuum filtration. They are also essential in scientific research, semiconductor manufacturing, medical suction devices, and many other industries.
– Air Compressors: Air compressors find applications where compressed air or gas at high pressure is needed. They are used in pneumatic tools, manufacturing processes, air conditioning systems, power generation, and inflating tires. Compressed air is versatile and can be employed in numerous industrial and commercial applications.
4. Design and Mechanism:
– Vacuum Pumps: Vacuum pumps are designed to create a vacuum by removing air or gas from a closed system. They may use mechanisms such as positive displacement, entrapment, or momentum transfer to achieve the desired vacuum level. Examples of vacuum pump types include rotary vane pumps, diaphragm pumps, and diffusion pumps.
– Air Compressors: Air compressors are engineered to compress air or gas, increasing its pressure and decreasing its volume. They use mechanisms like reciprocating pistons, rotary screws, or centrifugal force to compress the air or gas. Common types of air compressors include reciprocating compressors, rotary screw compressors, and centrifugal compressors.
5. Direction of Air/Gas Flow:
– Vacuum Pumps: Vacuum pumps draw air or gas into the pump and then expel it from the system, creating a vacuum within the chamber or system being evacuated.
– Air Compressors: Air compressors take in ambient air or gas and compress it, increasing its pressure and storing it in a tank or delivering it directly to the desired application.
While vacuum pumps and air compressors have different functions and operate under distinct pressure ranges, they are both vital in various industries and applications. Vacuum pumps create and maintain a vacuum or low-pressure environment, while air compressors compress air or gas to higher pressures for different uses and processes.
editor by CX 2023-11-23
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VP roots vacuum pump is in the 50 Torr-micron high vacuum range has a large pumping speed and minimal cost of equipment, it can be combined with various vacuum pump consists of a vacuum device. KMBD roots vacuum pump with 5 point bearing design unique, sealing the five bit machine, sealing double sealing structure + mechanical seal for Teflon maze, can realize non leakage, reduce upkeep and repair of the url, ensure the roots pump and durable. Synchronous helical gear and mounted on the driving end, both to ensure quiet and trustworthy procedure, and can reduce the load of the rotor torque. Impeller and shaft integrally forged, can provide large measurement shaft, impeller and reduce the risk of hurt. All contact with the sealing surface of the shaft stop faces are polished to reduce put on and reduce the chance of leakage, high temperature large pressure casing, and double tank design and style, a assortment of materials assortment, further to guarantee that the use of the user in different working situations. Normal application: chemical, petrochemical, plastics, semiconductors, wood mixture, food processing, vacuum furnace, vacuum booster technique, vacuum drying, vacuum dewatering, vacuum packaging
Normal Programs
Particular structures operating ideas,ideal for procedure in chemical business,oil industry,meals sector,electrical utility business,pharmacy industry,textile business and paper generating market,and so on. The other industries that need vacuum drying,focus,distilling,dehydration and filtering also need to have the water-ring vacuum pump. It can be use as a backing pump of Roots Pump.
Technical specs
| Design | Ability | Ultimate Force | Power | speed |
| L/S | Pa | KW | RPM | |
| VP200 | 200 | .05 | 4 | 2900 |
| VP600 | 600 | .05 | seven.five | 2900 |
Characteristic Curves
General Dimensions
firm information